Non-linear optical properties of methyl orange (MO) dye.

The purpose of this research look into the consequences of different concentrations (0.01mM, 0.05 mM, 0.1mM,0.25 mM, 0.5 mM) on nonlinear refraction n2 of Methyl Orange (MO) Dye in various spectral areas. The results of the investigation reveal that the effects of the concentration are effected by the excitation wavelength. using (Z-Scan) approach,Non-linear measurements were performed by using (CW) lasers at wavelengths (405nm, 473 nm, 532nm, 650nm) and with different laser power of (13.15 mw,9.85 mw, 34.74mw) respectively, and effect of add nanomaterial on non linear optical properties. The results showed that Nonlinear refraction index coefficient increased with increasing the concentration of samples. [ABSTRACT FROM AUTHOR]